@article{oai:nagoya.repo.nii.ac.jp:00019655,
 author = {KIMPARA, ATSUSHI},
 journal = {Proceedings of the Research Institute of Atmospherics, Nagoya University},
 month = {Mar},
 note = {This paper describes some remarkable characteristics of whistlers observed in IGY and IGC at Toyokawa and at Wakkanai in Japan. The author found that the frequency of occurrences of whistlers has a definite seasonal variation due to thunderstorm activities and distributions of electron density and geomagnetic intensity in the exosphere. Correlation of the number of whistlers with geomagnetic activities, superimposed on this variation, is found very close in the period of heavy geomagnetic disturbances or of abundant occurrence of whistlers : Correlation coefficient of the effective K-index and number of whistlers on the 2nd day after geomagnetic disturbances is +0.60. The average dispersion of whistlers per month lags 2 months behind from solar activities expressed by sunspot numbers. Characteristics of dispersion of whistlers observed simultaneously at both stations are discussed in some detail. Diurnal and seasonal variations for 2 years are also described.},
 pages = {40--57},
 title = {ON SOME REMARKABLE CHARACTERISTICS ON WHISTLER ATMOSPHERICS},
 volume = {7},
 year = {1960}
}